M42 to C/CS Mount Adapter Ring – Macro & Telescope Use

M42 to C/CS Mount Adapter Ring for Macro & Astronomical Photography

Unlock new creative possibilities with this precision-machined M42 to C/CS Mount Adapter Ring. Designed for photographers and hobbyists alike, this compact aluminum alloy adapter lets you connect any M42x0.75mm female thread lens or focusing barrel to a C or CS port camera or device — instantly expanding your optical setup without complex modifications.

Made in Mainland China.

Key Features

• Versatile Compatibility: Seamlessly converts M42x0.75mm lenses and focusing barrels to C/CS mount ports, giving your optical setup greater flexibility and creative range.
• Durable Aluminum Alloy Construction: Crafted from high-strength aluminum alloy for a sturdy, lightweight build that resists wear and rust — built to last through countless sessions in the field or studio.
• Optimized for Macro & Astrophotography: Ideal for capturing highly detailed close-up shots and astronomical subjects, opening up a whole new world of photographic opportunity.
• Anti-Reflective Inner Walls: Precision-machined interior surfaces minimize stray light, ensuring sharper, cleaner images with improved contrast and clarity.
• Compact & Travel-Friendly: Weighing just approximately 6g (0.2oz), it slips easily into any camera bag — perfect for on-the-go astrophotographers and macro enthusiasts.

Specifications

• Item Type: M42 to C/CS Mount Adapter Ring
• Material: Aluminum Alloy
• Female Thread: M42 x 0.75mm
• Male Thread / Port: C / CS Mount
• Weight: Approx. 6g / 0.2oz

Package Contents

• 1 × M42 to C/CS Mount Adapter Ring

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Frequently Asked Questions

Q: What is the M42 to C/CS mount adapter ring used for?

A: The M42 to C/CS mount adapter ring is designed to connect M42x0.75mm female thread lenses or focusing barrels to C or CS mount camera ports. It is widely used in macro photography and astronomical/telescope photography to expand compatibility between different optical systems.

Q: Is this adapter ring compatible with both C mount and CS mount cameras?

A: Yes, the adapter features a C/CS port male thread, making it compatible with both C mount and CS mount cameras and devices. Always verify your camera's flange depth when working with CS mount setups to ensure proper focus distance.

Q: Will the anti-reflective inner walls make a noticeable difference in image quality?

A: Absolutely. The precision-machined, anti-reflective inner walls are designed to absorb stray light that could otherwise cause flare or loss of contrast in your images. This is especially beneficial in macro and astrophotography where image clarity and detail are critical.

Q: How heavy is this adapter ring, and will it add bulk to my setup?

A: The adapter weighs only approximately 6g (0.2oz), making it one of the lightest options available. Its compact, low-profile design adds virtually no bulk to your camera or telescope setup, keeping your kit travel-friendly and easy to handle.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.